Seth Godin – Not even one note:

“At no point did someone sit me down and say, "wait, none of this matters if you can't play a single note that actually sounds good."

[…] We add many slides to our presentation before figuring out how to utter a single sentence that will give the people in the room chills or make them think.

[…] The cop-out would be […] to add one more thing to my list of mediocre.”